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EN 4012:2025

Aerospace series - Nut, bihexagonal, self-locking, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), MoS2 coated - Classification: 1 550 MPa (at ambient temperature)/425 °C

Publication date:   Dec 16, 2025

General information

60.60   Standard published   Oct 29, 2025

CEN

ASD-STAN Aerospace

European Norm

49.030.30   Nuts

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Scope

This document specifies the characteristics of self-locking bihexagonal nuts in NI-PH2601, MoS2 coated, for aerospace applications.
Classification: 1 550 MPa /425 °C .

Life cycle

PREVIOUSLY

WITHDRAWN
EN 4012:2004

NOW

PUBLISHED
EN 4012:2025
60.60 Standard published
Oct 29, 2025